Using redd counts to estimate salmonids spawner abundances: A Bayesian modelling approach

Publication year: 2010
Source: Fisheries Research, In Press, Corrected Proof, Available online 7 July 2010</br>
Guillaume, Dauphin , Etienne, PrÚvost , Colin E., Adams , Patrick, Boylan</br>
Redd (nest) counts are widely used for monitoring salmonid populations. Because of their relative low cost, redd counts allow a good spatial coverage over a long period of time. In this paper we develop a generic Bayesian hierarchical model relating Atlantic salmon, Salmo salar L. spawner abundance and redd counts which accounts for the associated sources of uncertainty. Three rivers of a large catchment are considered and variability across these rivers in the spawners to redds relationship is taken in account. We use short time series, where data on both redds and spawner numbers are available to estimate the parameters...</br>

11th August 2010 12:14

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